We currently have a Catalyst 3560G connected to a Catalyst 3750G via GBICs, and the connection will go up, and then a few seconds later it will go down.  If the GBICs are reseated, the connection will go back up, but then go back down a few seconds l...

I have two Catalyst 3570 switches, switch A and switch B, connected via GBICs in uplink ports.  The ports are randomly disconnecting, so I am suspecting that one of the mini GBICs is failing, but I cannot figure out which one.  Is there a way to figu...

In hopes to monitor all packet activity on a Catalyst 3750 switch, I have created a SPAN where I have been attempting to use the destination port for packet sniffing.  The issue is that I can only see broadcasts as well as inbound/outbound activity f...

I would like to setup a vlan on our existing network. We have a 2800 used as an edge router connected to cat. 3750 used as a layer 3 switch. We have several other layer 2 switches connected to the 3750. I have a subnet that will be used for the v...

I had two Cat. 3750 switches that I needed to perform the password recovery on. I used the guide from Cisco listed below. The first switch went as expected without any issues. However, I ran into an issue with the second switch. At step 10. where ...